Mastering some basic search techniques can improve your results and save you time.
Boolean operators (AND, OR, AND NOT) These words are used to combine your search terms. See the graphic to the right.
Truncation--Use the asterisk * to retrieve all variants of a word. For example, environ* will retrieve environment, environmentalist, environmental. But be careful! Env* will retrieve envelope or envelopes or envy. You will get many irrelevant items.
Phrase searching--If your search term is a phrase, e.g., physical geology, enclose the phrase in quotation marks. "Physical geology" is a more specific search than typing the words separately.